AD9739-R2-EBZ datasheet(1/48 Pages) AD

部件名	AD9739-R2-EBZ

功能描述	14-Bit, 2.5 GSPS, RF Digital-to-Analog Converter

PDF	48 Pages

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制造商	AD [Analog Devices]

网页	http://www.analog.com

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1 / 48 page

14-Bit, 2.5 GSPS,

RF Digital-to-Analog Converter

Data Sheet

AD9739

Rev. B

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringementsof patentsorother

rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

www.analog.com

Fax: 781.461.3113

FEATURES

Direct RF synthesis at 2.5 GSPS update rate

DC to 1.25 GHz in baseband mode

1.25 GHz to 3.0 GHz in mix mode

Industry leading single/multicarrier IF or RF synthesis

fOUT = 350 MHz, ACLR =80 dBc

fOUT = 950 MHz, ACLR = 78 dBc

fOUT = 2100 MHz, ACLR = 69 dBc

Dual-port LVDS data interface

Up to 1.25 GSPS operation

Source synchronous DDR clocking

Pin-compatible with the AD9739A

Multichip synchronization capability

Programmable output current: 8.7 mA to 31.7 mA

Low power: 1.16 W at 2.5 GSPS

APPLICATIONS

Broadband communications systems

Military jammers

Instrumentation, automatic test equipment

Radar, avionics

GENERAL DESCRIPTION

The AD9739 is a 14-bit, 2.5 GSPS high performance RF digital-

to-analog converter (DAC) capable of synthesizing wideband

signals from dc up to 3.0 GHz. Its DAC core features a quad-

switch architecture that provides exceptionally low distortion

performance with an industry-leading direct RF synthesis

capability. This feature enables multicarrier generation up to

the Nyquist frequency in baseband mode as well as second and

third Nyquist zones in mix mode. The output current can be

programmed over the 8.66 mA to 31.66 mA range.

The inclusion of on-chip controllers simplifies system integration.

A dual-port, source synchronous, LVDS interface simplifies the

digital interface with existing FGPA/ASIC technology. On-chip

controllers are used to manage external and internal clock domain

variations over temperature to ensure reliable data transfer from

the host to the DAC core. Multichip synchronization is possible

with an on-chip synchronization controller. A serial peripheral

interface (SPI) is used for device configuration as well as readback

of status registers.

The AD9739 is manufactured on a 0.18 μm CMOS process and

operates from 1.8 V and 3.3 V supplies. It is supplied in a 160-ball

chip scale ball grid array for reduced package parasitics.

FUNCTIONAL BLOCK DIAGRAM

DCI

SDO

SDIO

SCLK

CS

DACCLK

DCO

SYNC_OUT

SYNC_IN

CLK DISTRIBUTION

(DIV-BY-4)

SPI

RESET

SYNC-

CONTROLLER

IOUTP

IOUTN

VREF

I120

IRQ

1.2V

DAC BIAS

AD9739

TxDAC

CORE

Figure 1.

PRODUCT HIGHLIGHTS

1.

Ability to synthesize high quality wideband signals with

bandwidths of up to 1.25 GHz in the first or second

Nyquist zone.

2.

A proprietary quad-switch DAC architecture provides

exceptional ac linearity performance while enabling mix

mode operation.

3.

A dual-port, double data rate, LVDS interface supports the

maximum conversion rate of 2500 MSPS.

4.

On-chip controllers manage external and internal clock

domain skews.

5.

A multichip synchronization capability.

6.

Programmable differential current output with a 8.66 mA

to 31.66 mA range.

类似零件编号 - AD9739-R2-EBZ

制造商	部件名	数据表	功能描述
Analog Devices	AD9739-R2-EBZ	1Mb / 50P	14-Bit, 2.5 GSPS, RF Digital-to-Analog Converter 1/2012-Rev. A to Rev. B

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